Temperature and % Relative Humidity (RH) values inside processing
rooms were recorded with a thermo-hygrometer Data Logger (ESCORT
Data Loggers Inc., USA). Data were downloaded with the ESCORT programme
forWindows (version 1.61.06). Air speed (AS) was measured
using anemometers equipped with a hot bulb probe, Ø = 3 mm
(Testo 445, Germany), located in two parts of conditioned rooms (within
and out from areas occupied by hams). Environmental data collected
over processing report the working conditions of the two plants
(Table 1). Temperature data recorded in plant B were fairly constant
at 15 °C over the drying phase (lasting one week), whereas plant A operated
at 17–18 °C during the first three days, dropping to 14–15 °C in
the remaining period; RH values were similar in both plants and fell in
the 78–80% range. Plant A and B operated with different average air
speed (0.2 m/s vs 0.08 m/s) during the drying phase.